EPA Air · stack tests by state, industry and year
Educational services (NAICS 6113): stack tests in Wisconsin, 2026
- 3Stack tests
A stack test measures what a source actually emits, at the stack, against the limit in its permit. Each row is one stack test recorded during 2026 at a Wisconsin source whose primary industry code is NAICS 6113. A facility filing more than one industry code is counted under the first one on its record.
Educational services (NAICS 6113) in Wisconsin, other years
Other industries in Wisconsin, 2026
- Utilities (NAICS 2211) 51
- Paper manufacturing (NAICS 3221) 11
- Chemical manufacturing (NAICS 3251) 9
- Petroleum and coal products manufacturing (NAICS 3241) 8
- Primary metal manufacturing (NAICS 3315) 6
- Waste management and remediation (NAICS 5622) 6
- Utilities (NAICS 2213) 4
- Plastics and rubber products manufacturing (NAICS 3261) 4
- Nonmetallic mineral product manufacturing (NAICS 3274) 3
Air-emissions stack tests recorded in Wisconsin, 2026
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2026-04-07 | WI DOA / UW-MADISON WALNUT ST PLT | MADISON, Dane, WI | Pass | State |
| 2026-02-10 | WI DOA / UW-MADISON WALNUT ST PLT | MADISON, Dane, WI | Pass | State |
| 2026-02-09 | UW MADISON CHARTER STREET HEATING PLANT (DOA) | MADISON, Dane, WI | Pass | State |
Primary NAICS code as filed on the facility record; dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.